On last season's finale, Richards battled it out with her sister Kyle, who called her an alcoholic.

In October, new costar Brandi Glanville accused Kim of being "wasted out of her f---ing mind" during a game-night episode. Kim strongly denied it during a shouting match that became one of the show's biggest fights so far this season.

The reality star (whose niece is Paris Hilton) revealed in a November episode that she's been taking anti-anxiety and antidepressant medications, along with an anti-seizure medication which can be used to treat alcoholism.